forked from rook/rook
Travis Nielsen
0298d1fb29
move core rados packages under cluster folder move daemons under daemon pkg rename flex crd package to attachment pin dep to k8s 1.8.2
383 lines
13 KiB
Go
383 lines
13 KiB
Go
/*
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Copyright 2016 The Rook Authors. All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package mon
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import (
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"fmt"
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"io/ioutil"
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"os"
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"path"
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"path/filepath"
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"strings"
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"github.com/coreos/pkg/capnslog"
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"github.com/go-ini/ini"
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"github.com/rook/rook/pkg/clusterd"
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"github.com/rook/rook/pkg/daemon/ceph/client"
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)
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var logger = capnslog.NewPackageLogger("github.com/rook/rook", "cephmon")
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const (
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MonitorKeyringTemplate = `
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[mon.]
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key = %s
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caps mon = "allow *"` + AdminKeyringTemplate
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AdminKeyringTemplate = `
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[client.admin]
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key = %s
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auid = 0
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caps mds = "allow"
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caps mon = "allow *"
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caps osd = "allow *"
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caps mgr = "allow *"
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`
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)
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type CephMonitorConfig struct {
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Name string `json:"name"`
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Endpoint string `json:"endpoint"`
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}
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type cephConfig struct {
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*GlobalConfig `ini:"global,omitempty"`
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}
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type GlobalConfig struct {
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EnableExperimental string `ini:"enable experimental unrecoverable data corrupting features,omitempty"`
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FSID string `ini:"fsid,omitempty"`
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RunDir string `ini:"run dir,omitempty"`
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MonMembers string `ini:"mon initial members,omitempty"`
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MonHost string `ini:"mon host"`
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LogFile string `ini:"log file,omitempty"`
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MonClusterLogFile string `ini:"mon cluster log file,omitempty"`
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PublicAddr string `ini:"public addr,omitempty"`
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PublicNetwork string `ini:"public network,omitempty"`
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ClusterAddr string `ini:"cluster addr,omitempty"`
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ClusterNetwork string `ini:"cluster network,omitempty"`
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MonKeyValueDb string `ini:"mon keyvaluedb"`
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MonAllowPoolDelete bool `ini:"mon_allow_pool_delete"`
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MaxPgsPerOsd int `ini:"mon_max_pg_per_osd"`
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DebugLogDefaultLevel int `ini:"debug default"`
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DebugLogRadosLevel int `ini:"debug rados"`
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DebugLogMonLevel int `ini:"debug mon"`
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DebugLogOSDLevel int `ini:"debug osd"`
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DebugLogBluestoreLevel int `ini:"debug bluestore"`
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DebugLogFilestoreLevel int `ini:"debug filestore"`
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DebugLogJournalLevel int `ini:"debug journal"`
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DebugLogLevelDBLevel int `ini:"debug leveldb"`
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FileStoreOmapBackend string `ini:"filestore_omap_backend"`
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OsdPgBits int `ini:"osd pg bits,omitempty"`
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OsdPgpBits int `ini:"osd pgp bits,omitempty"`
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OsdPoolDefaultSize int `ini:"osd pool default size,omitempty"`
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OsdPoolDefaultMinSize int `ini:"osd pool default min size,omitempty"`
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OsdPoolDefaultPgNum int `ini:"osd pool default pg num,omitempty"`
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OsdPoolDefaultPgpNum int `ini:"osd pool default pgp num,omitempty"`
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OsdMaxObjectNameLen int `ini:"osd max object name len,omitempty"`
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OsdMaxObjectNamespaceLen int `ini:"osd max object namespace len,omitempty"`
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OsdObjectStore string `ini:"osd objectstore"`
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CrushLocation string `ini:"crush location,omitempty"`
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RbdDefaultFeatures int `ini:"rbd_default_features,omitempty"`
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FatalSignalHandlers string `ini:"fatal signal handlers"`
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}
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// get the path of a given monitor's run dir
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func getMonRunDirPath(configDir, monName string) string {
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return path.Join(configDir, monName)
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}
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// get the path of a given monitor's keyring
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func getMonKeyringPath(configDir, monName string) string {
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return filepath.Join(getMonRunDirPath(configDir, monName), "keyring")
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}
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// get the path of a given monitor's data dir
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func getMonDataDirPath(configDir, monName string) string {
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return filepath.Join(getMonRunDirPath(configDir, monName), "data")
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}
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// get the path of a given monitor's config file
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func GetConfFilePath(root, clusterName string) string {
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return fmt.Sprintf("%s/%s.config", root, clusterName)
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}
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func GenerateAdminConnectionConfig(context *clusterd.Context, cluster *ClusterInfo) error {
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return GenerateAdminConnectionConfigWithSettings(context, cluster, nil)
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}
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func GenerateAdminConnectionConfigWithSettings(context *clusterd.Context, cluster *ClusterInfo, settings *cephConfig) error {
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root := path.Join(context.ConfigDir, cluster.Name)
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keyring := fmt.Sprintf(AdminKeyringTemplate, cluster.AdminSecret)
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keyringPath := path.Join(root, fmt.Sprintf("%s.keyring", client.AdminUsername))
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err := writeKeyring(keyring, keyringPath)
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if err != nil {
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return fmt.Errorf("failed to write keyring to %s. %+v", root, err)
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}
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if _, err = GenerateConfigFile(context, cluster, root, client.AdminUsername, keyringPath, settings, nil); err != nil {
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return fmt.Errorf("failed to write config to %s. %+v", root, err)
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}
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logger.Infof("generated admin config in %s", root)
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return nil
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}
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func writeMonKeyring(context *clusterd.Context, c *ClusterInfo, name string) error {
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keyringPath := getMonKeyringPath(context.ConfigDir, name)
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keyring := fmt.Sprintf(MonitorKeyringTemplate, c.MonitorSecret, c.AdminSecret)
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return writeKeyring(keyring, keyringPath)
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}
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// writes the monitor keyring to disk
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func writeKeyring(keyring, path string) error {
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if err := os.MkdirAll(filepath.Dir(path), 0744); err != nil {
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return fmt.Errorf("failed to create keyring directory for %s: %+v", path, err)
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}
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if err := ioutil.WriteFile(path, []byte(keyring), 0644); err != nil {
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return fmt.Errorf("failed to write monitor keyring to %s: %+v", path, err)
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}
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return nil
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}
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// generates and writes the monitor config file to disk
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func GenerateConnectionConfigFile(context *clusterd.Context, cluster *ClusterInfo, pathRoot, user, keyringPath string) (string, error) {
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return GenerateConfigFile(context, cluster, pathRoot, user, keyringPath, nil, nil)
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}
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// generates and writes the monitor config file to disk
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func GenerateConfigFile(context *clusterd.Context, cluster *ClusterInfo, pathRoot, user, keyringPath string,
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globalConfig *cephConfig, clientSettings map[string]string) (string, error) {
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if pathRoot == "" {
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pathRoot = getMonRunDirPath(context.ConfigDir, getFirstMonitor(cluster))
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}
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// create the config directory
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if err := os.MkdirAll(pathRoot, 0744); err != nil {
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logger.Warningf("failed to create config directory at %s: %+v", pathRoot, err)
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}
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configFile, err := createGlobalConfigFileSection(context, cluster, pathRoot, globalConfig)
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if err != nil {
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return "", fmt.Errorf("failed to create global config section, %+v", err)
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}
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if err := addClientConfigFileSection(configFile, getQualifiedUser(user), keyringPath, clientSettings); err != nil {
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return "", fmt.Errorf("failed to add admin client config section, %+v", err)
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}
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// if there's a config file override path given, process the given config file
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if context.ConfigFileOverride != "" {
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err := configFile.Append(context.ConfigFileOverride)
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if err != nil {
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// log the config file override failure as a warning, but proceed without it
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logger.Warningf("failed to add config file override from '%s': %+v", context.ConfigFileOverride, err)
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}
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}
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// write the entire config to disk
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filePath := GetConfFilePath(pathRoot, cluster.Name)
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logger.Infof("writing config file %s", filePath)
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if err := configFile.SaveTo(filePath); err != nil {
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return "", fmt.Errorf("failed to save config file %s. %+v", filePath, err)
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}
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return filePath, nil
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}
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// create a keyring for access to the cluster, with the desired set of privileges
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func CreateKeyring(context *clusterd.Context, clusterName, username, keyringPath string, access []string, generateContents func(string) string) error {
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_, err := os.Stat(keyringPath)
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if err == nil {
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// no error, the file exists, bail out with no error
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logger.Debugf("keyring already exists at %s", keyringPath)
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return nil
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} else if !os.IsNotExist(err) {
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// some other error besides "does not exist", bail out with error
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return fmt.Errorf("failed to stat %s: %+v", keyringPath, err)
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}
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// get-or-create-key for the user account
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key, err := client.AuthGetOrCreateKey(context, clusterName, username, access)
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if err != nil {
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return fmt.Errorf("failed to get or create auth key for %s. %+v", username, err)
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}
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return WriteKeyring(keyringPath, key, generateContents)
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}
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func WriteKeyring(keyringPath, keyring string, generateContents func(string) string) error {
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// write the keyring to disk
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keyringDir := filepath.Dir(keyringPath)
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if err := os.MkdirAll(keyringDir, 0744); err != nil {
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return fmt.Errorf("failed to create keyring dir at %s: %+v", keyringDir, err)
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}
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contents := generateContents(keyring)
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logger.Debugf("Writing keyring to: %s", keyringPath)
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if err := ioutil.WriteFile(keyringPath, []byte(contents), 0644); err != nil {
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return fmt.Errorf("failed to write keyring to %s: %+v", keyringPath, err)
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}
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return nil
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}
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// prepends "client." if a user namespace is not already specified
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func getQualifiedUser(user string) string {
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if strings.Index(user, ".") == -1 {
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return fmt.Sprintf("client.%s", user)
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}
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return user
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}
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func getFirstMonitor(cluster *ClusterInfo) string {
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// Get the first monitor
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for _, m := range cluster.Monitors {
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return m.Name
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}
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return ""
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}
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func CreateDefaultCephConfig(context *clusterd.Context, cluster *ClusterInfo, runDir string) *cephConfig {
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// extract a list of just the monitor names, which will populate the "mon initial members"
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// global config field
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monMembers := make([]string, len(cluster.Monitors))
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monHosts := make([]string, len(cluster.Monitors))
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i := 0
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for _, monitor := range cluster.Monitors {
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monMembers[i] = monitor.Name
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monHosts[i] = monitor.Endpoint
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i++
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}
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cephLogLevel := logLevelToCephLogLevel(context.LogLevel)
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return &cephConfig{
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GlobalConfig: &GlobalConfig{
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FSID: cluster.FSID,
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RunDir: runDir,
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MonMembers: strings.Join(monMembers, " "),
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MonHost: strings.Join(monHosts, ","),
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LogFile: "/dev/stdout",
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MonClusterLogFile: "/dev/stdout",
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PublicAddr: context.NetworkInfo.PublicAddrIPv4,
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PublicNetwork: context.NetworkInfo.PublicNetwork,
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ClusterAddr: context.NetworkInfo.ClusterAddrIPv4,
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ClusterNetwork: context.NetworkInfo.ClusterNetwork,
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MonKeyValueDb: "rocksdb",
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MonAllowPoolDelete: true,
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MaxPgsPerOsd: 1000,
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DebugLogDefaultLevel: cephLogLevel,
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DebugLogRadosLevel: cephLogLevel,
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DebugLogMonLevel: cephLogLevel,
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DebugLogOSDLevel: cephLogLevel,
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DebugLogBluestoreLevel: cephLogLevel,
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DebugLogFilestoreLevel: cephLogLevel,
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DebugLogJournalLevel: cephLogLevel,
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DebugLogLevelDBLevel: cephLogLevel,
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FileStoreOmapBackend: "rocksdb",
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OsdPgBits: 11,
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OsdPgpBits: 11,
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OsdPoolDefaultSize: 1,
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OsdPoolDefaultMinSize: 1,
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OsdPoolDefaultPgNum: 100,
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OsdPoolDefaultPgpNum: 100,
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RbdDefaultFeatures: 3,
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FatalSignalHandlers: "false",
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},
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}
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}
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func createGlobalConfigFileSection(context *clusterd.Context, cluster *ClusterInfo, runDir string, userConfig *cephConfig) (*ini.File, error) {
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var ceph *cephConfig
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if userConfig != nil {
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// use the user config since it was provided
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ceph = userConfig
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} else {
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ceph = CreateDefaultCephConfig(context, cluster, runDir)
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}
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configFile := ini.Empty()
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err := ini.ReflectFrom(configFile, ceph)
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return configFile, err
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}
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func addClientConfigFileSection(configFile *ini.File, clientName, keyringPath string, settings map[string]string) error {
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s, err := configFile.NewSection(clientName)
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if err != nil {
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return err
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}
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if _, err := s.NewKey("keyring", keyringPath); err != nil {
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return err
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}
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for key, val := range settings {
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if _, err := s.NewKey(key, val); err != nil {
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return fmt.Errorf("failed to add key %s. %v", key, err)
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}
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}
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return nil
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}
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func logLevelToCephLogLevel(logLevel capnslog.LogLevel) int {
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switch logLevel {
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case capnslog.CRITICAL:
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case capnslog.ERROR:
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case capnslog.WARNING:
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return -1
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case capnslog.NOTICE:
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case capnslog.INFO:
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return 0
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case capnslog.DEBUG:
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return 10
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case capnslog.TRACE:
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return 100
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}
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return 0
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}
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// writes the monitor backend file to disk
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func writeBackendFile(monDataDir, backend string) error {
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backendPath := filepath.Join(monDataDir, "kv_backend")
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if err := ioutil.WriteFile(backendPath, []byte(backend), 0644); err != nil {
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return fmt.Errorf("failed to write kv_backend to %s: %+v", backendPath, err)
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}
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return nil
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}
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func generateMonMap(context *clusterd.Context, cluster *ClusterInfo, folder string) (string, error) {
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path := path.Join(folder, "monmap")
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args := []string{path, "--create", "--clobber", "--fsid", cluster.FSID}
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for _, mon := range cluster.Monitors {
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args = append(args, "--add", mon.Name, mon.Endpoint)
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}
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err := context.Executor.ExecuteCommand(false, "", "monmaptool", args...)
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if err != nil {
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return "", fmt.Errorf("failed to generate monmap. %+v", err)
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}
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return path, nil
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}
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